Word: highes
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...high-pressure field is created in front of the body, and a low-pressure field is created at the back of the body," explains Katija, and the low-pressure acts like a vacuum, sucking in the nearby water when the jellyfish begins to move. "What we have found is a mechanism that would allow for animals to mix water efficiently when they swim...
...look at fuel, not Fords: institute carbon taxes that raise the price of gas. We already know that higher gas prices discourage driving and reduce greenhouse-gas emissions - total vehicle miles traveled in the U.S. declined 3.6% in 2008 compared with the previous year, thanks largely to the sky-high price of gas for much of 2008. (The recession didn't help, but sharp declines in driving began well before the bottom dropped out of the economy.) As gas prices have fallen in 2009, however, driving has begun to tick back...
Americans already pay considerably less than the Europeans and Japanese for gas - it's one of the reasons we've been able to subsidize a wasteful SUV lifestyle for so long. A smart tax would stabilize the price of gas at a high enough level to discourage driving - and it would generate revenue that could be used for a number of green programs, including cash for clunkers. Certainly, efficiency is an important goal - a new report from McKinsey & Co. found that the U.S. economy could save $1.2 trillion through 2020 by investing $520 billion in various efficiency investments - and encouraging...
...health officials are bracing for a resurgence of the new H1N1/09 flu virus this fall, when the influenza season kicks into high gear with the resurgence of cold weather. By October, the government hopes to have 120 million doses of vaccine ready to fight the new virus, which is currently spreading around the world in the first pandemic in more than 40 years. Already, H1N1 is hitting the southern hemisphere hard: Argentina has recorded more than 160 deaths from H1N1, second most after the U.S. That's because it's winter in the southern hemisphere, and flu infections tend...
...researchers, who tested guinea pigs, found that the spread of the virus was most prevalent when the temperature reached a chilly 41°F (5°C); infections slowly decline as the mercury rises, before stopping altogether at 86°F (30°C). (Tropical countries, where fairly constant, high temperatures are prevalent, tend to have relatively even rates of infection all year long, without the sharp peaks and valleys seen in cooler countries.) It's also possible that the drier air in winter can dehydrate mucus in the nasal passages, lowering the body's natural defense against the virus...